Python scan QR code and OCR

reader-qr-ocr.py

import sys, cv2  # opencv
from PIL import Image # Python Imaging Library
from pyzbar.pyzbar import decode # python zbarcode
fdemo=sys.argv[1] # get filename from command line

img=Image.open(fdemo)  # open file
width, height=1800,400  # specify crop img size
x ,y = 50, 10 # start coordinate
area=(x,y,x+width,y+height)  

cropped_img=img.crop(area)  # crop
cropped_img.save('opt.jpg') # save to new file

data = decode(cropped_img)  # QR code decoder
print(data) # print decode data from QR Code